/*
 * Copyright 2025 LinQingYing. and contributors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * The use of this source code is governed by the Apache License 2.0,
 * which allows users to freely use, modify, and distribute the code,
 * provided they adhere to the terms of the license.
 *
 * The software is provided "as-is", and the authors are not responsible for
 * any damages or issues arising from its use.
 *
 */

package org.cangnova.cangjie.psi

import org.cangnova.cangjie.lexer.CjTokens
import org.cangnova.cangjie.psi.psiUtil.getTrailingCommaByClosingElement
import com.google.common.collect.Lists
import com.intellij.lang.ASTNode
import com.intellij.openapi.util.TextRange
import com.intellij.psi.PsiElement
import com.intellij.psi.util.PsiTreeUtil

class CjArrayAccessExpression(node: ASTNode) : CjExpressionImpl(node), CjReferenceExpression {
    override fun <R, D> accept(visitor: CjVisitor<R, D>, data: D?): R? {
        return visitor.visitArrayAccessExpression(this, data)
    }

    @get:IfNotParsed
    val arrayExpression: CjExpression?
        get() = findChildByClass(CjExpression::class.java)

    val indexExpressions: List<CjExpression>
        get() = PsiTreeUtil.getChildrenOfTypeAsList(
            indicesNode,
            CjExpression::class.java,
        )

    val indicesNode: CjContainerNode
        get() {
            val indicesNode =
                checkNotNull(findChildByType<CjContainerNode>(CjNodeTypes.INDICES)) { "Can't be null because of parser" }
            return indicesNode
        }

    val bracketRanges: List<TextRange>
        get() {
            val lBracket = leftBracket
            val rBracket = rightBracket
            if (lBracket == null || rBracket == null) {
                return emptyList()
            }
            return Lists.newArrayList(
                lBracket.textRange,
                rBracket.textRange,
            )
        }

    val leftBracket: PsiElement?
        get() = indicesNode.findChildByType(CjTokens.LBRACKET)

    val rightBracket: PsiElement?
        get() = indicesNode.findChildByType(CjTokens.RBRACKET)

    val trailingComma: PsiElement?
        get() = getTrailingCommaByClosingElement(rightBracket)
}
